Lava flows

Image Credit: NASA/JPL/ASU

About this image

Lava flows and channels are visible here on the eastern flanks of Ascraeus Mons. One of the channels is bordered by levees, which form as lava overflows the channel banks, cools and solidifies. The other prominent channel to the north lacks levees, suggesting it may be a collapsed lava tube, or may have an aqueous origin.